US2783226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of cortical hormones
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1955-02-03
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Granted: 1957-02-26
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Expires: 1975-02-03
Abstract
No abstract record available.
Inventors
- 👤 David H Gould
- 👤 Hershel L Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:32
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
21-ESTERS OF $1-CORTICAL HORMONES OF THE GROUP CONSISTING OF 1-DEHYDROCORTISONE AND 1,4-PREGNADIENE-11B, 17A,21-TRIOL-3,20-DIONE, WITH ACIDS OF THE GROUP CONSISTING OF PHENYLOXY-LOWER-ALKANOIC ACIDS AND FUROIC ACID AND THE LOWER ALKYL, LOWER ALKOXY, CHLORO-AND BROMO-SUBSTITUTION PRODUCTS OF SAID ACIDS.
Claim 2
Dependent Claim
37 words
21-ESTERS OF $1-CORTICAL HORMONES OF THE GROUP CONSISTING OF 1-DEHYDROCORTISONE AND 1,4-PREGNADIENE-11B, 17A,21-TRIOL-3,20-DIONE, WITH ACIDS OF THE GROUP CONSISTING OF PHENYLOXY-LOWER-ALKANOIC ACIDS AND FUROIC ACID AND THE LOWER ALKYL, LOWER ALKOXY, CHLORO-AND BROMO-SUBSTITUTION PRODUCTS OF SAID ACIDS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |